io.write('                                 ')
print('LiYiLiang\'s Jia Jian Cheng Chu Biao')


print('Jia Fa Biao')
for i=1,20 do
	for j=1,i do 
		io.write(string.format('%2s+%-2s=%-4s', j , i , j+i))
	end
	io.write('\n')
end 
io.write('\n')


print('Jian Fa Biao')
for i=1,20 do
	for j=1,i do 
		io.write(string.format('%2s-%-2s=%-4s', j , i , j-i))
	end
	io.write('\n')
end 
io.write('\n')


print('Cheng Fa Biao')
for i=1,20 do
	for j=1,i do 
		io.write(string.format('%2s*%-2s=%-4s', j , i , j*i))
	end
	io.write('\n')
end 
io.write('\n')
